PlainWater

Asotin County, Washington

SDWIS compliance plate

Sheet WA003 · Asotin County 7 sys · 219 viol · #1557/3254

VIOL-SEVERE · HEALTH-MID · RANK-MID · PHOTO-FINISH · PFAS-CLEAN · SRC-GW · SYS-TINY · BOOK-FULL

  • VIOL-SEVERE 100.0% flagged
  • HEALTH-MID 21.5% health
  • RANK-MID #1557/3254
  • PHOTO-FINISH ±0.0 pp
  • PFAS-CLEAN 0.0% detect
  • SRC-GW GW lead 100%
  • SYS-TINY 7 systems
  • BOOK-FULL 7/7 fields

Nearest flagged-rate peer: Pacific County (+ 0 pp flagged-rate)

According to EPA SDWIS county population served used on /counties, Asotin County ranks #1,557 of 3,254 counties by people served, and #31 of 39 counties in Washington. See methodology · corpus placement.

Asotin County standing, mid-flagged corpus third

Flagged-system rate 100.0% is in the corpus middle third (≤ 100.0% flagged) across 2,973 counties with ≥3 SDWIS systems . Health-based share 21.5% is health-based share in the middle third (≤ 24.5%) . UCMR5 detect rate 0.0% is UCMR5 detect rate at or below the tested-pool lower third (≤ 0.0%) . Population served ranks #1,557 of 3,254 · #31 of 39 in Washington.

Flagged-rate neighbourhood around Asotin County

Lowest/highest poles plus in-state counties nearest Asotin County on % of SDWIS systems with ≥1 violation. Full ladder: /counties.

0% 20% 40% 60% 80% 100% Grant · lowest Skamania · near Wahkiakum · highest 69.8% 97.7% 98.3% 100% 100% 100%

Source: EPA SDWIS (county aggregates) As of 2026-05-15

Water Systems

System Name Population Violations PFAS
PUD #1 of Asotin County 21,930 133 Clean
Asotin Water Dept 2,531 7 -
Fields Spring State Park 344 1 -
Chief Timothy Park 160 1 -
Beamers Landing 31 67 -
Grand Ronde Ranches #1 20 5 -
Blue Mountain Homesites 6 5 -

Compare beyond Washington

Mid-flagged peers for Asotin County

Cross-state counties nearest Asotin County on flagged-system share (100.0%) and cumulative violation count (219). In-state neighbours stay on the compliance plate above.

Similar flagged-system rate

Nearest cross-state counties by % of SDWIS systems with at least one violation on record.

4 peers

Similar violation load

Nearest cross-state counties by cumulative SDWIS violation count (all systems in the county).

4 peers
Data sourced from EPA SDWIS and UCMR5 PFAS monitoring data. See our methodology for details. Retrieved and formatted by PlainWater

Every figure on PlainWater is rendered directly from EPA SDWIS drinking-water data, no number is typed in by an editor. This page draws directly on EPA SDWIS data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.